gcc/testsuite/gcc.dg/pr111694.c

   1 /* PR tree-optimization/111009 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2" } */
   4
   5 #define signbit(x) __builtin_signbit(x)
   6
   7 static void test(double l, double r)
   8 {
   9   if (l == r && (signbit(l) || signbit(r)))
  10     ;
  11   else
  12     __builtin_abort();
  13 }
  14
  15 int main()
  16 {
  17   test(0.0, -0.0);
  18 }
  19